Hydroelectric power has been generated at Cwm Dyli (near Beddgelert), within the Snowdonia National Park, since 1906. In fact, electricity produced there powered the first ever transatlantic transmission station set up by Marconi in 1912 near the village of Waenfawr, Caernarfon
Construction of Cwm Dyli started in 1905 to supply power for the then prosperous slate industry.
Supplying power directly to the National Grid, it is Britain's oldest power station, and is believed to be one of the oldest Grid-connected hydro-electric stations in the world.

Subscribed version includes associated companies along with address and other contact details, also link to company and crossreference to their projects (still being populated, 90% complete for Solar projects) Subscriber Register

DECC Data on this Project: Cwm Dyli DECC Reference:

Subscribed version includes access to DECC data where it exists for this project. Also facility to include a mix of DECC data within csv downloads Subscriber Register

OFGEM Data on this Project: Cwm Dyli : Hydro OFGEM Reference:

Subscribed version includes access to OFGEM data where it exists for this project. Also facility to include a mix of OFGEM data within csv downloads Subscriber Register